S.h. 20 over Black Bird Creek
Good Condition75 years old2,400 vehicles/day
Location
| State | Oklahoma |
| County | Osage |
| Location | 0.5 Mi. E. Jct. Sh99 |
| Carries | S.h. 20 |
| Crosses | Black Bird Creek |
| Coordinates | 36.41340, -96.38183 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 46.9 ft (14.3 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Area | 174.5 sq m |
| Main Spans | 3 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 2,400 (2022) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 125750000000000 |